I think this will be very long war with the illegal gambling in Turkey. And with bitcoin, it will be very hard to put a stop on it. Gamblers will simple used TOR or other VPN services so that they can play online games. Mostly that will be affected though is the illegal bookies that runs on Turkey. But for online gambling with bitcoin, its gonna be difficult for the police.
Turkish authorities may prohibit the use of anonymizers, as was done in Russia. This will restrict access to users. If they are not forbidden to use such programs, then I agree, it will be difficult to do anything with gambling.